Safety-envelop.



PATENTED JUNE 28, 1904.

m R m WN M H IE HF A s 7 9 7 3 6 7 0- N A'PPLIOAIION IILED NOV. 7, 1903.

N0 MODEL.

witnesses UNITED STATES Patented June 28, 1904.

HENRY RUEVE, JR, OF SHERIDAN, PENNSYLVANIA.

SAFETY-ENVELOP- SPECIFICATION formingpart of Letters Patent No. 763,797,dated June 28, 1904.

Application filed November '7, 1903. Serial No. 180,251. "(No model.)

To a. whom it may concern:

Be it known that I, HENRY RUEVE, J r., a citizen of the United States,residing at Sheridan, in the county of Allegheny and State ofPennsylvania, have invented .new and useful Improvements inSafety-Eriv'elops, of which the following is a specification.

My invention relates to new and useful improvements in safety-envelops;and its object is to provide a device of this character which whensealed has no exposed edges which might be tampered with by unauthorizedpersons for the purpose of unsealing the envelop.

The invention consists in forming an envelop of a sheet of paper orother suitable material the side edges of which are folded so as to formtriangular flaps, between the central ones of which is arranged apartition which is adapted to be secured therein by means of gum. Asealing-flap of ordinary form is arranged along one edge of the envelopand has the gum or mucilage affixed upon its two faces, whereby saidflap can be inserted into one of the compartments of the envelop andsecured to both walls thereof, thereby thoroughly sealing the othercompartments of the envelop and leaving no edges of the blank exposed.

The invention also consists in the further novel construction andcombination of parts hereinafter more fully described and claimed, andillustrated in the accompanyingdrawings, showing the preferred form ofmy invention, and in which Figure 1 is a perspective view of the deviceopen. Fig. 2 is a similar View thereof prior to the insertion of thepartition. Fig. 3 is a perspective View of the open envelop, taken fromthe other side thereof. Fig. 4. is a section through the sealed envelop,and Fig. 5 is a detail View of the partition.

Referring to the figures by numerals of reference, l is a blank of paperor other suitable material'the side edges of which are folded to form,preferably, four triangular flaps 2, separated by triangular recesses 3.A sealingflap 4 is formed integral with the blank at one end thereof andbeyond the triangular flaps 2, and the remainder of the blank is foldedupon itself, so as to form the flaps 2 between the ends thereof.Mucilage or other suitable material is placed upon both faces of theseal- 'the sealing-flap and are aflixed thereto.

ing-flap 4, as shown at 5 in Figs. 2 and 3. A partition 6, substantiallysimilar in size to one of the folds of the strip 1, is adapted to beinserted within the central triangular recess 3, and this partition hasa gummed flap 7 at its lower edge, which is adapted to be affixed to oneof the folds of the strip 1. The walls of these central recesses 3 aregummed, and after the partition has been inserted thereinto and the flap7 affixed to the strip 1 the walls of the central recesses 3 are afiixedto the ends of the partition, as shown in Fig. 1, thereby forming twocompartments 8 and 9 Within the envelop. When it is desiredto seal theenvelop, the sealing-flap 4: is inserted into the compartment 9, and thewalls of said compartment are then pressed upon the two faces of It willbe seen that after an envelop of this construction has been sealed inthis manner none of the edges of the blank are exposed, and thereforeitis impossible to open or unseal the envelop without tearing or otherwisemutilating the material of which it is constructed.

In the foregoing description I have shown the preferred form of myinvention; but I do not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of theadvantages thereof, and I therefore reserve theright to make such changes as fairly fall within the scope of myinvention.

Having thus described the invention, what is claimed as new is- Anenvelop comprising a strip folded upon itself and having integraltriangular flaps between the ends thereof and projecting inwardly, apartition interposed between and aflixed to the central triangular flapsat each end of the envelop, a flap extending from the inner edge of thepartition, and affixed to the strip, and a flap integral with one end ofthe strip and adapted to be inserted betiveen and affixed to the otherend of the strip, the adjoining triangular flaps and the partition.

In testimony whereof I afiix my signature in presence of two witnesses.

HENRY RUEVE, JR.

Witnesses:

F. C. ENGEL, E. L. DAVIN.

